Two substrate dual polarised aperture coupled patch

Abstract

A broad band dual polarized aperture coupled patch with high polarisation isolation is presented. Both dual linear and dual circular configurations are investigated. Although dimensions are given for a specific substrate and frequency using the impedances and frequency scaling, this design can be applied to other frequency bands. These particular designs are optimized for wide bandwidth but the concept can be applied to build antennas with varied specifications. The key to the designs is the use of two substrates: one on top of the aperture and one below.